Cucaracha
Cuchicuchi
Cucina
Cuckoo
Cuddlebug
Cuddlefudge
Cuddler
Cuddles
Cuddly
Cue
Cuervo
Cuffles
Cuffy
Cujo
Culver
Cumulus
Cunch Punch
C-Unit
Cupcake
Cupid
Curious
Curious George
Curlie
Curly
Curmudgeon
Curry
Curtains
Cury (short for Curiosity)
Cusco
Custard